The **RW3X-R10-KB** is a precision wirewound resistor manufactured by **RCD Components**. It is designed for high-reliability applications where stability, high power-to-size ratios, and precise resistance values are required. --- ### ## Technical Specifications The part number follows a specific nomenclature used by RCD. Here is the breakdown of the technical attributes for this specific model: | Parameter | Specification | | :--- | :--- | | **Manufacturer** | RCD Components | | **Series** | RW Series (Power Wirewound) | | **Resistance Value** | 0.10 $\Omega$ (R10) | | **Tolerance** | $\pm$10% (K) | | **Power Rating** | 3 Watts (3X) | | **Packaging** | Bulk (B) | | **Construction** | Ceramic core with welded wire element | --- ### ## Key Features * **High Power Density:** The "X" in the series often denotes a semi-precision or miniature size variant that handles higher wattage than standard resistors of the same physical dimensions. * **Excellent Thermal Stability:** Being a wirewound resistor, it maintains its resistance value effectively across a wide temperature range. * **Flameproof Coating:** The exterior is typically coated with a high-temperature silicone or cement-based material that is moisture-proof and flame-retardant. * **Inductive Nature:** Standard wirewound resistors have inherent inductance. If used in high-frequency circuits, this part may act like a small inductor unless specified as "non-inductive" (usually denoted by an "N" in the prefix). --- ### ## Common Applications The RW3X-R10-KB is commonly found in the following types of electronic circuits: 1. **Current Sensing:** Because of its low resistance (0.10 $\Omega$), it is ideal for measuring current flow by monitoring the voltage drop across the resistor. 2. **Power Supplies:** Used as a bleeder resistor or for inrush current limiting. 3. **Industrial Controls:** Integrated into motor controllers and heavy-duty power management systems. 4. **Voltage Dividers:** Employed in high-power voltage division where precision is required at high currents. --- ### ## Replacement and Cross-Reference Tips If you are looking for a substitute, ensure the following parameters match or exceed the original: * **Wattage:** Must be 3W or higher. * **Resistance:** Must be exactly 0.10 $\Omega$. * **Tolerance:** The "K" denotes 10%. A part with 5% (J) or 1% (F) tolerance is a safe upgrade. * **Lead Spacing:** Ensure the physical length of the body fits your PCB footprint.